105 réponses à ce sujet

[Suron]

well this has never been brought up before.



+1

[Lambu1]

this has been discussed ad nausium. it is a game, suspend all belief

edit: ok i'll bite, the most that could happen if you were exposed to empty vacuum of space it that you  might get a serious case of the bends (nitrogen bubbles in the blood) and then you'd freeze due to space being about 4 degrees kelvin or
-452*F.

Modifié par Lambu1, 08 mars 2010 - 06:35 .

[screwoffreg]

Well, the game takes some liberties of course. For example the concept of energy shielding has no basis in modern physics, as far as I can tell. It would be useless anyway as any kinetic weapon used in space could accelerate to the point that it would be nearly an instant kill in every battle.

[max_ai]

Threads like this pop up constantly.



For crying out loud, tis' a game!

Imagine the contour intuitive control of the Normandy if it was implemented in a correct scientific manner! The cries that would be on this forum... Wait, the Normandy can also go through a star, how did you not notice that?



In a game: Convenience & Eye candies >> Science

You'll do well to keep that in mind as you play your next game.

[kraidy1117]

Soverain wrote...

bioware should at least remove fuel usage in ME3 and give each squad member costomisble full body armor like in ME1 and also add the danger of soft skined organics exploding in the vacum of space.

Who cares? It's a game and I rather have characters with unique outfits then the same armor. Don't like it, go play ME. Also the fuel system was smart, why? Because unlike ME2 where you could get max credits very easy, you can't in ME2.

[Pannamaslo]

Soverain wrote...

i would like to point out one obvious science inaccuacy in mass effect 2. when i boarded the collector ship for the first time, i took with me thane and jack who were both without pressure suits.

what would happen when an organic body with soft skin is exposed to a vacum is that the pressure in the body will expand and the body will explode.
also water boils at temperatures lower than room temp in a vacum as i saw on the history channel, when a jar of water was placed in an airtight container and when all the air was sucked out the water boiled.
water based life forms will die in a vacum.

the point is that in a vacum organics will explode, my squad member should have been wearing fullbody pressure suits.

the law of motion which bioware noted when some alliance soldiers talked about it on the citadel is not applied to the normandy. if it was then fuel will not be used up when the ship it at contstant speed, in real life fuel will only be used up when the ship speeds up, slows down or changes direction, that would be complicated so its better bioware removes the fuel usage from mass effect altogether.

some of you would say its a science fiction and that it dont have to be scientificly accurate.
I DISAGREE, science fiction must be as accurate as posible, especially with obivous things like motion and some known laws of physics, a sci fi dont have to be accurate with everything though, just most thing and the important things.

if there are anyother scientific inaccuracies you would like to point out please post it here

Somebody please call PETA

[jimmyjoefro]

Being exposed to a vacuum would not cause your body to explode, you would not instantly freeze, and the only thing that is likely to boil is the saliva in your mouth.



Your body is pressurized and would adapt to the vacuum environment. You could survive in space without a suite until you passed out from the lack of breathable air. Just be sure to stay out of direct sun light, unless you want a wicked sunburn.

[DarthCaine]

A wizard did it

[Lemonwizard]

Human bodies don't explode in space, the solid portions of it are sturdy enough to hold together, but you get ebullism so severe that your body swells up to more than twice its normal size, and though it's possible to survive in a vacuum unprotected for as long as a minute if you receive immediate medical attention, thirty seconds without a pressurized suit means you'll have irreparable brain damage from your cerebrospinal fluid literally boiling inside your skull and spine.

[Daewan]

Once upon a time, some wildly imaginative writer made up a story where people communicated through the use of internetworked computers that send "electronic messages" back and forth using telephone lines to transfer data at extremely high speeds. Such crazy nonsense!

Years before that, some writer had a gimmick in his stories of an elevator that didn't need a human attendant because it was programmed to automatically stop only at certain floors and no others. He jokingly called it "an express elevator" after the express trains in New York City where his stories were located. The same writer also had a gimmick of a talking machine that recorded incoming calls when the main character wasn't there. The main character frequently used it to trick people into leaving evidence, as the message was timestamped. Who would ever believe that was possible?

Once upon a time, a writer made up a story using a boat that sailed underwater, carrying its own air. He went into crazy detail about how the hull would survive the crushing pressures, and about all the weird things you could see underwater. It was heralded as a masterpiece of speculative fantasy.

I do hope the irony of all that doesn't go right over your head.

[Lambu1]

jimmyjoefro wrote...

Being exposed to a vacuum would not cause your body to explode, you would not instantly freeze, and the only thing that is likely to boil is the saliva in your mouth.

Your body is pressurized and would adapt to the vacuum environment. You could survive in space without a suite until you passed out from the lack of breathable air. Just be sure to stay out of direct sun light, unless you want a wicked sunburn.

references, or your speculating just like the OP

[Cross1280]

Except, with the exception of legions loyality mission which can be argued, you are always on a ship that has some form of artifical gravity so there for would have gravemetric pressure and would not be an absolut vacuum, so what they are wearing would be suffecent with rebreathers needed to supply oxygen. Current Pressure suits used by Nasa are only pressurized to .3b or 30% of the pressure at earths sea level. So it is not hard to use a little imagination to concluded that the ships Mass Effect Field provides at least .3b of gravimetric pressure. Now the only mission where this fails is with Legions loyalty quest as he sataes geth have no need for gravity or atmosphere.

[Lemonwizard]

If you really want to handwave the science of these two points, I'll do it for you:



1) They don't need pressure suits because they have mass effect fields maintaining a small atmosphere around them.



2) It's entirely possible that Newton's laws of physics break down at FTL speeds and a constant acceleration is needed to keep traveling faster than the speed of light. Notice you don't use fuel traveling within a single star system, only from star to star.







Or, if you want the real answer:





3) Bioware didn't think about this too hard, neither should you.

[jimmyjoefro]

Soverain wrote...

jimmyjoefro wrote...

Being exposed to a vacuum would not cause your body to explode, you would not instantly freeze, and the only thing that is likely to boil is the saliva in your mouth.

Your body is pressurized and would adapt to the vacuum environment. You could survive in space without a suite until you passed out from the lack of breathable air. Just be sure to stay out of direct sun light, unless you want a wicked sunburn.

I DO PHYSICS, that very pressure in the human body is why it will explode in a vacum, the internal body pressure will expand and continue to expand untill it ripp open your skin and escapes into space.
the posibility is that the body will explode before it freezes and then the guts and pieces freeze.

Well, you should do physics better, because you could certainly use a nice lesson on the issue, courtesy of NASA.

Modifié par jimmyjoefro, 08 mars 2010 - 06:40 .

[Ecael]

[rabbitchannel]

Maviarab wrote...

I would like to point out that there at least 3 other threads talking about this...

also, just to blow your noodle....according to who? Have you been in space? Have you actually seen someone explode in space?

How do you know all this? ahhh yes....teh internets and men in white coats....do you believe everything that someone tells you?

define accurate....if your only basis for a thesis is what you have been told/read...who is to say what you have read/been told is really correct or accurate at all ?

Even if you haven't been in space, you should at least be able to come to logical conclusions. Just because I haven't seen anyone get shot in the head doesn't mean I don't know he will die.

There are plenty of credible sources on the internet. 4chan and Wikipedia are not, obviously. I will believe what I am told or at least consider it when someone who is qualified and has obtained a good reputation tells me so. For example, my professor in university. Or a person who is a lead figure in his or her field. I'm tired of people saying, "lol scientists! What do they know?" People shouldn't believe everything they're told, for certain, but if you discount everything until you prove it to yourself then education and qualifications are worthless. A cardiologist is more knowledgeable about the heart than the average person. That is truth.

[Lemonwizard]

One of the twisted experiments conducted by ****s during WW2 involved putting live humans into a vacuum chamber. They did not explode, their bodies swelled up to ridiculous proportions and they died of oxygen deprivation because your blood can't flow while it's a gas so no oxygen reaches the other cells of your body.





This is different from normal suffocation in that it happens much more quickly than if there was just nothing for you to breathe and your blood kept recirculating what it had left for a few minutes.

[Pannamaslo]

*sigh*

"If you don't try to hold your breath, exposure to space for half a minute or so is unlikely to produce permanent injury. Holding your breath is likely to damage your lungs, something scuba divers have to watch out for when ascending, and you'll have eardrum trouble if your Eustachian tubes are badly plugged up, but theory predicts -- and animal experiments confirm -- that otherwise, exposure to vacuum causes no immediate injury. You do not explode. Your blood does not boil. You do not freeze. You do not instantly lose consciousness.



Various minor problems (sunburn, possibly "the bends", certainly some [mild, reversible, painless] swelling of skin and underlying tissue) start after ten seconds or so. At some point you lose consciousness from lack of oxygen. Injuries accumulate. After perhaps one or two minutes, you're dying. The limits are not really known.



You do not explode and your blood does not boil because of the containing effect of your skin and circulatory system. You do not instantly freeze because, although the space environment is typically very cold, heat does not transfer away from a body quickly. Loss of consciousness occurs only after the body has depleted the supply of oxygen in the blood. If your skin is exposed to direct sunlight without any protection from its intense ultraviolet radiation, you can get a very bad sunburn.



At NASA's Manned Spacecraft Center (now renamed Johnson Space Center) we had a test subject accidentally exposed to a near vacuum (less than 1 psi) in an incident involving a leaking space suit in a vacuum chamber back in '65. He remained conscious for about 14 seconds, which is about the time it takes for O2 deprived blood to go from the lungs to the brain. The suit probably did not reach a hard vacuum, and we began repressurizing the chamber within 15 seconds. The subject regained consciousness at around 15,000 feet equivalent altitude. The subject later reported that he could feel and hear the air leaking out, and his last conscious memory was of the water on his tongue beginning to boil.



Aviation Week and Space Technology (02/13/95) printed a letter by Leonard Gordon which reported another vacuum-packed anecdote:



"The experiment of exposing an unpressurized hand to near vacuum for a significant time while the pilot went about his business occurred in real life on Aug. 16, 1960. Joe Kittinger, during his ascent to 102,800 ft (19.5 miles) in an open gondola, lost pressurization of his right hand. He decided to continue the mission, and the hand became painful and useless as you would expect. However, once back to lower altitudes following his record-breaking parachute jump, the hand returned to normal." "



Ref.



Survival Under Near-Vacuum Conditions in the article "Barometric Pressure," by C.E. Billings, Chapter 1 of Bioastronautics Data Book, Second edition, NASA SP-3006, edited by James F. Parker Jr. and Vita R. West, 1973.



The Effect on the Chimpanzee of Rapid Decompression to a Near Vacuum, Alfred G. Koestler ed., NASA CR-329 (Nov 1965).



Experimental Animal Decompression to a Near Vacuum Environment, R.W. Bancroft, J.E. Dunn, eds, Report SAM-TR-65-48 (June 1965), USAF School of Aerospace Medicine, Brooks AFB, Texa